Pop singer Britney Spears is reportedly in talks to perform at this year's Emmy Awards, following her recent performance at the MTV Video Music Awards.The singer's comeback at the VMAs was widely criticised, with Spears admitting afterwards that she was "embarrassed" by her performance.Us Weekly reports that the singer is considering appearing at the Emmys to apologise for her last performance. A source told the magazine: "The idea is to have her come on and apologise for the VMAs. She's weighing the offer.""All I can say is that the Emmy people aren't dealing with her record company, her manager or her agents...""So if she is doing anything for the Emmys then it's not going through the official channels," the source said.